Quantum Mechanics

  1. Approximation Methods
    1. Perturbation Theory
      1. Time-Independent Perturbation Theory
        1. Non-Degenerate Case
          1. First-Order Corrections
            1. Second-Order Corrections
              1. Degenerate Case
                1. Matrix Diagonalization
                2. Time-Dependent Perturbation Theory
                  1. Sudden Approximation
                    1. Adiabatic Approximation
                      1. Periodic Perturbations
                        1. Fermi's Golden Rule
                      2. Variational Method
                        1. Variational Principle
                          1. Trial Wave Functions
                            1. Ground State Energies
                              1. Excited States
                                1. Applications
                                  1. Helium Atom
                                    1. Molecular Systems
                                  2. WKB Approximation
                                    1. Semiclassical Method
                                      1. Classical Turning Points
                                        1. Connection Formulas
                                          1. Quantization Conditions
                                            1. Tunneling Applications

                                          Previous

                                          9. The Hydrogen Atom

                                          Go to top

                                          Next

                                          11. Identical Particles and Many-Body Systems